专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

2. 发明专利

JPS5961736A Integrated pressor sensor 失效
标题翻译：集成式压力传感器
公开(公告)号：JPS5961736A
公开(公告)日：1984-04-09
申请号：JP17083282
申请日：1982-10-01
申请人： Hitachi Ltd
发明人： YAMADA KAZUJI , SATOU HIDEO , KITADATE YUKITAKA , KAWAKAMI HIROJI , KATOU KAZUO , SASAYAMA TAKAO
IPC分类号： G01L9/04 , G01L9/00 , G01L9/06
CPC分类号： G01L9/065 , Y10S323/907
摘要： PURPOSE:To make a mechanical amount and output constant over a wide temp. range, by changing the emitter area of a main transistor while changing current density. CONSTITUTION:A constant-current source of which the temp. characteristics are coincided with a curve 14 with respect to resistance R5 is constituted by a circuit constituted from transistors Q1, Q2, resistances R3, R4 and a constant- current source 15. In addition, a current is converted to voltage by a circuit constituted from R5 and an amplifier 16 to be applied to the voltage supply end 18 of the bridge 17 for a pressure sensor and drive voltage is changed so as to be made proportional to the inverse number of the change in bridge output voltage with the temp. change to perform temp. compensation. In this case, a constant- current is supplied so as to reduce the current density of Q2 and the current densities of Q1 and Q2 are obtained by changing the emitter areas ratio of Q1 and Q2.
摘要翻译：目的：使机械量和输出在宽温度下保持恒定。通过在改变电流密度的同时改变主晶体管的发射极面积来实现。构成：恒流源，特性与相对于电阻R5的曲线14一致由由晶体管Q1，Q2，电阻R3，R4和恒流源15构成的电路构成。另外，通过由 R5和放大器16被施加到用于压力传感器的桥17的电压端18并且驱动电压被改变，以便与电流输出电压的变化的倒数成正比。改变进行温度补偿。在这种情况下，提供恒流以减小Q2的电流密度，并且通过改变Q1和Q2的发射极面积比来获得Q1和Q2的电流密度。

IPRDB

热门服务

关于我们

友情链接

联系方式